Correct Answer: B

Rationale: The best way to evaluate pain levels is to ask the client to rate his pain on a scale. This method provides a more standardized and quantifiable measure of pain compared to subjective observations like facial expressions (choice C) or direct questioning (choice D). Monitoring vital signs (choice A) can be part of pain assessment but is not as specific or reliable as asking the client to self-report pain intensity.

Correct Answer: A

Rationale: AST, choice A, would be the least effective in diagnosing a myocardial infarction as it is not specific for this condition. Troponin, CK-MB, and myoglobin (choices B, C, and D) are more specific markers for myocardial infarction. Troponin is considered the gold standard due to its cardiac specificity. CK-MB is also specific to the heart, and its isoenzyme levels elevate post-heart damage. Myoglobin, although elevated in myocardial infarction, is not as specific as troponin and CK-MB and can also increase in conditions like burns and muscle trauma. Therefore, AST is the least effective choice for diagnosing a myocardial infarction.

Correct Answer: B

Rationale: When the dialysate returns cloudy, it could indicate the presence of infection, and sending a specimen to the lab for evaluation is crucial to determine the cause. Documenting the finding alone, as in choice A, may not provide enough information for proper intervention. Straining the dialysate, as in choice C, is not a standard practice and may not help identify the underlying issue. Obtaining a complete blood count, as in choice D, is not directly related to addressing cloudiness in the dialysate. However, the healthcare provider might order a white blood cell count to assess for infection.

Correct Answer: D

Rationale: The mothers in answers A, B, and C all require RhoGam as they are Rh negative with an Rh-positive baby or have experienced a stillbirth delivery, making them candidates for RhoGam injection. The mother in answer D is the only one who does not require Rhogam because she is Rh negative with an Rh-negative baby, eliminating the need for RhoGam administration.

Correct Answer: B

Rationale: The correct answer is to inform the client that portions of the renal biopsy procedure can cause pain or discomfort, particularly when the sample is being withdrawn. This prepares the client for any unpleasant sensations during the procedure. Answer A is incorrect because the client will be positioned lying down, not sitting up, during the exam, so this information is not relevant to include in the teaching session. Answer C is incorrect as anesthesia is commonly used to numb the area for a renal biopsy, reducing pain, so the client can expect to receive anesthesia. Answer D is incorrect because clients are usually instructed to refrain from eating or drinking for a period before the procedure to prevent any complications during the biopsy, not simply before the study.